InfoSecBulletin Cybersecurity for mankind
Oracle’s October 2025 Critical Patch Update fixes 374 vulnerabilities in multiple products, making it one of the largest patches recently, covering databases, middleware, enterprise applications, and communication systems.
As always, Oracle recommends that customers apply patches without delay, as many of the fixed vulnerabilities can be exploited remotely, even without authentication. This makes the update particularly urgent for all organizations using Oracle infrastructure in critical environments.
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An update that affects much of the Oracle ecosystem
The October bulletin covers a long list of products, including:
Oracle Database versions 19, 21, and 23
Oracle WebLogic Server and Fusion Middleware
Oracle Enterprise Manager
MySQL Server, Cluster, Workbench, Shell and Enterprise Backup
Oracle E-Business Suite
Oracle Communications Applications alone receives 46 security fixes
Oracle GoldenGate, Essbase, Graph Server and Client, REST Data Services, and many other components
Some fixed vulnerabilities are critical because they let attackers remotely execute code without needing valid credentials. This flaw poses a significant threat to exposed network infrastructure.
Risk and severity assessment:
Vulnerabilities were evaluated using CVSS version 3.1, which considers the effects on system confidentiality, integrity, and availability. Some scores are extremely high, signaling a risk of total service compromise if updates are not implemented.
Oracle highlights that some vulnerabilities can impact “client-only” installations, like modules that link to vulnerable servers. Thus, even workstations without a database or core service may be at risk.
Serious vulnerabilities in the Oracle Marketing product of Oracle E-Business Suite have been identified: CVE-2025-62481, CVE-2025-10916, CVE-2025-53072, and CVE-2025-53037, all rated 9.8.
Oracle’s recommendations:
The company urges all customers to promptly install patches on all supported versions, including those in Extended Support. Users of outdated versions should plan to migrate to supported releases soon.
Oracle recommends temporary measures while waiting for patches, like limiting access to affected network ports, reducing user privileges, and blocking non-essential modules. However, these steps are not a complete replacement for updates and only partially lower the risk.
